National Parks


VIC West - Discovery Bay Marine National Park

It covers 3,050 hectares and is part of the largest coastal basalt formation in Western Victoria. There is a high diversity of intertidal and shallow subtidal invertebrates, including abalone and rock lobster. The basalt reefs are covered in kelps including the large brown kelp Ecklonia radiata. The calcarenite reefs abound with sponges, ascidians, bryozoans and gorgonians. The region is well known for whale watching and blue whales regularly pass by the area.

Discovery Bay is Victoria's marine gateway to the Great Australian Bight and the immense seas of the Southern Ocean. The cliffs of Cape Bridgewater to the east and the white sand dunes of Discovery Bay to the north frame the Discovery Bay Marine National Park. The coastline is formed from the remains of a massive volcano which spewed forth lava over the last million years, cooling into hard, basalt rock.

The seafloor of the area reflects this dynamic history. In deep water (30 to 60 metres) within the park, there are low reefs formed from ancient shorelines or dunes when the sea-levels were much lower than today. These reefs are covered in rich sponge 'gardens', composed of numerous types of sponges, filmy sea-mosses and erect sea-fans. Between the reefs, there are plains of sand winnowed into symmetrical ridges by the endless movement of water.


Discovery Bay Marine National Park is 20 kilometres west of Portland and adjacent to Discovery Bay Coastal Park

Further Information

Parks Victoria Information Centre
Level 10/535 Bourke Street
Melbourne Victoria 3000
Ph: 13 1963